Bacterial vaginosis and preterm birth: a prospective community-based cohort study.
D000022:Abortion, Spontaneous / Q000453:epidemiology / Q000209:etiology*; D000293:Adolescent; D000328:Adult; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008875:Middle Aged; D007752:Obstetric Labor, Premature / Q000453:epidemiology / Q000209:etiology*; D011247:Pregnancy; D011256:Pregnancy Outcome; D011446:Prospective Studies; D012307:Risk Factors; D011795:Surveys and Questionnaires; D014626:Vaginal Smears / Q000379:methods; D016585:Vaginosis, Bacterial / Q000150:complications*